Retaining and suspending device



Oct. 22, 1940.

w. L. ROESSNER 2,218,856 RETAINING AND SUSPENDING DEVICE Filed May 29, 1939 ili ; UNITE ATENT oFFice, I

RETAININGAND SUSiPENDING DEVICE William Louis Roessner, Chicago, Ill., assignor to Bertha L. MacGre'gor, as trustee Application Ma 29,1939, Serial No. 276,279

2 3 Claims.

This invention relates to retaining and suspending devices and particularly-to a device for retaining in assembled relation a plurality of separate parts. 2

Inv the embodiment of my invention herein shown and described, the retaining deviceserves to retain in assembled relationtheunconnected free ends of the metal frame members of a fire extinguisher of the grenade type, in which embodiment it also serves as means for suspending the extinguisher. However, the retaining means may be employed in devices which need not be "suspended.

The retaining device of my invention is best adapted for use in assembling theunconnected free ends of two or more members which are in- 7 tended to extend radially, with or without curving or inclination, relatively to said retaining I device. I

The suspending means is designed to serve also in the assembling of the retaining device and the parts to be retained by it.

' The retaining device may be used to advantage in structures where the unconnected parts .to be retained cannot be welded or otherwise connected to each other, and where spacefor a retaining member is limited.

- vIn the drawing:

Fig. 1 is an elevational view of a fire extinguisher grenade in which the unconnected upper ends of the metal frame members are retained by a retaining and suspending device embodying 3 my invention.

Fig. 2 is a vertical sectional view, on an enlarged scale, taken in the plane of .the line 2--2 of Fig. 1.

Fig. 3 is a horizontal sectional view, taken in the plane of the line 3,3 of Fig. 2.

Fig. 4 is a plan view of the device shown in Fig. 1. r

'Fig. 5 is an elevation, partly in section, of the screw member detached.

upper ends of the frame members I2 are cut away at each side, as indicated at l3 in Fig. 3, to accommodate the ends within a small area at the apex of the container l0.

Fig. 2.

Preferably the cut away ends are bent as indicated at I4 and H3 in A specially shaped screw, indicated at a whole at l6, comprises a head ll which has a concave surface l8 adapted to rest on the rounded upper end of the container ID. The head I! is inclined, as indicated at 19 and 20, from its periphery to a shank which is knurled adjacent the head as indicated at 2|, and screw threaded from the knurled portion to its freeend, asindicated at 22. The head I! of the inverted member l6 fits beneath the free ends of the frame members I2.

A bell shaped hood 23, recessed and bored centrally as indicated at 24, 25, 2B and 21, is adapted to fit over the screw l6 and ends of the frame members 12, the inclination of the surfaces and 25 being correlated with the surfaces l9 and 20 to receive between them the frame ends. After the hood 23 has been positioned on the screw l6 and frame ends, it maybe retained by means of a nut screwed on the end 22 of the shank, but

I prefer to use for this purpose a device 28 which I The knurling 2| on the shank of the screw l6;

frictionally engaging the free ends of the frame members I2,'prevents the screw Hi from turning in the assembly when the device 23 is screwed into place to draw the hood 23 and the head of the screw toward each other and to clamp the free ends of the frame members in assembled position between said hood 23 and the head I! of the screw.

The device 28 is a short tube provided'with a slightly flattened surface 29 at one side and a screw threaded bore 30 through said flattened side. When the device 28 is screwed on the shank 22 of the screw I6, it bears on the fiat-. ten'ed top of the hood 23, and the head I! of the screw is drawn toward the inner surfaces 24, 25

and 26 of the hood, thereby firmly gripping the I claim:

1. In combination with a fire extinguisher of the grenade type having a plurality of relatively movable, radially extending frame members, means for assembling the free ends of said frame members, said means comprising an inverted headed screw having inwardly and upwardly inclined surfaces between the periphery of the head and the shank of the screw on which said frame members bear, a bored and recessed hood fitted over the shank of said screw and on said frame members, and means on the shank drawing the headed screw and frame members into the recessed hood.

2. In combination with a fire extinguisher of the grenade type having a plurality of relatively movable, radially extending frame members, means for assembling the free ends of said frame members, said means comprising an inverted headed screw having inwardly and upwardly inclined surfaces between the periphery of the head and the shank of the screw on which said frame members bear, a bored and recessed hood fitted over the shank of said screw and on said frame members, and means on the shank drawing the headed screw and frame members into the recessed hood, said last mentioned means including a suspension device and screw threads for engaging the screw threaded end of the shank.

3. In combination with a fire extinguisher of the grenade type having a plurality of relatively movable, radially extending frame members, means for assembling the free ends of said frame members, said means comprising an inverted headed shank on which said frame members bear, a recessed hood fitted over the shank and on said frame members, and means on the shank bearing on the hood and retaining said frame members between the headed shank and hood.

WILLIAM LOUIS ROESSNER. 

